Excellent lectures. Thanks for uploading these gems. Your enthusiasm and dedication really shine through. You are responsible for awakening a big interest in deep time, biological evolution, and geology in me.
For sure a great course to be in :-) I watched it multiple times. A pity is the bad sound-quality in videos from "Thyreophora II: Ankylosauria" on, but it's definitely worth watching.
As you may have detected from the crummy audio, I had a terrible mic, that on the day of the Stegosaurs completely failed. It doesn't look like these next two semesters I will get to do Dino's but I am planning on uploading two other courses for 19/20 related to ecology and ichthyology and purchasing a much better microphone.
I actually just watched a lecture series that covered earth's history, and in the section about the cretaceous the speaker said that the K is used because the German translation uses a K. Although wikipedia said both that that the German translation for cretaceous is the word for chalk, which apparently is Kreide and also that it is based on the Latin word Creta, which also means chalk. I think I like your reasoning better. Great video!
I favor the German explanation, as German was a major scientific language in palaeontology, geology, chemistry and physics up to the second world war. We say "Kreidezeit" (chalk time) to the Cretaceous. There are other German loanwords in this field like "lagerstatten". This comes from Lagerstätte, which means "deposit locality". It is also the reason why the element potassium is K and sodium is Na in the periodic table, from the German versions Kalium and Natrium.
Great Video Dr Evans. It is really cool how the flexible diet of the nautiloids helped them to survive :) I hear they also have a longer lifespan, so even if the ocean water is too acidic for their thin shelled babies to survive for a couple years, they can spawn again later. But they say ammonites had a grow fast, die young strategy like modern squids & octopuses - so just 2 years with ocean water too acidic for their thin shelled offspring could drive them to extinction................. but, then again.............. how did ammonites survive the Great Dying & not survive the K-PG extinction??? Interesting thought....
Good question, but ammonites were already on the decline by the K-Pg, whereas they were far more abundant and diverse earlier. I suspect, they are a very old group, that they began to be out-competed by more advanced forms that began to dominate the ocean, but testing this with the fossil record is hard. Another interesting mollusk story if you are interested: th-cam.com/video/S4vxoP-IF2M/w-d-xo.html
The cataclysms known as Siberian and Deccan Traps killed off much of the humans and animals in their regions - the only greater extinction than the Siberian - and its related decimation - occurred when dozens of supervolcanoes erupted in North America in one night as thousands of smaller volcanoes erupted across four continents - geologists, volcanologists, paleontologists, etc., are oblivious to this cataclysm but it's documented in historic records, in different languages - with the exact date - by people more than 16,000 km apart - this horror is corroborated in other languages by those who observed the on-going destruction which included decades of some of the volcanoes erupting and massive clouds of volcanic ash - an estimated 99% of all human and animals died in North America because of that destruction. Since the timeline for the broken and subducted tectonic plates is also documented in historic records, since the force that broke and subducted the tectonic plates is documented, since the timeline for the ocean trenches and archipelago islands is documented, since the when and why of the Grand Canyon is documented by our ancestors in the old recoreds, since the when and why of the Siberian and Deccan Traps is documented, since the when and why of the boot of Italy is documented, since the timeline for the Mediterranean Sea is documented, since the timeline for the Red Sea, the Arabian Sea, the Ross Sea, etc., is documented, since the timeline for the Arabian, Iberian, Yucatan and Olympic Peninsulas are documented, since the timeline for the giant sea creatures and dinosaurs is documented, since the timeline for the continents, oceans, mountains, glaciers, ice shelves, Earth's expansion, Earth's cataclysms, Earth's climate, etc., are all documented - by our ancestors who barely survived or later documented the decimation and since this timeline from our ancestors is corroborated by thousands of other independent sources, theories from the "scientists" are exposed as idiotic insanity.
That crater is a figment of the imagination, published in "scholarly journals" by multi-million dollar publishing houses that are controlled by the pedovore overlords that control our world ... now let's see ... what would be their motive for propagating lies and lunacy?
I wonder if the rock fallout being discussed at the 20 minutes mark was sufficient to start fires in areas throughout the world? I heard this suggested, but never knew if anybody had verified this outcome. Edit nevermind: It gets mentioned later
I would suspect, like most scientists, they are happy to see their idea be shown to be wrong and a better answer given. I have overturned my own hypotheses with new data, it is exhilarating to get closer to the truth.
Have we ever discovered fossils from animals that are thought to have died in this extinction event, or in any other extinction events? If not, why are these fossils missing, I would assume that the billions of dead individual animals would show up in the fossil record?
Even on really bad days, the number of animals that can die is minuscule compared to the number that have lived. So the number preserved at this moment in time (if they were) would still be too small to detect.
@@thomasevans3387 So a statistical argument. I get it. If we assume that the average lifespan of a dinaosaur is 20 years, the odds of a specific dinosaur fossil being from the extinction event (all other things equal) is roughly 200m / 20 = 10m. So we only need to find 10m fossils to have a 63 % chance that one of them comes from the K/T extinction event. I wonder if we would be able to tell if it came from that event, though.
@28 minutes: Historic documents explain the cause of this cataclysm - with the exact date - written in different languages by people more than 16,000 km apart - this is then corroborated in other languages by those who came along shortly afterward and documented the decimation. "Scientific framework" with artist renderings and "scientific" graphs is not equivalent to reality - you've just exposed yourself as a lunatic with no conscience who prefers guessing games and wild imaginings to actual evidence.
He starts with a picture.......then immediately says..... but it but it doesn't look like that....the crater rings are wrong..the inner one should be smaller and it shows the crater over land when it should be in water...i would have got up and walked out right there........like showing a volkswagon and saying but it doesn't look like that it's 20 feet longer and has double headlights........sloppy presentation
The point of showing something and then saying it doesn't look like this, is that it makes the viewer think: Why is there this disconnect? Intentional trick to get people to remember things better.
But it DOES "look" like that. Though this impact was most likely not the cause or sole cause (the Deccan Traps in India, which were erupting for about a million years most likely had a lot to do w/the K-T extinction). Please no more speculation or conspiracy stuff. Just follow the research & do more and/or better stuff & don't say anything that you can't back up. Thanks.
Wish there were more of these. Really enjoyed these lectures.
Excellent lectures. Thanks for uploading these gems. Your enthusiasm and dedication really shine through. You are responsible for awakening a big interest in deep time, biological evolution, and geology in me.
Thank you, I hope you find the study of these things rewarding.
turn the sound up !!!!!
Excellent video sound gain is too low but I got through it with the captions turned on :)
Thank you verry much for the hole series with all these interesting insights :-)
+Phonomatic Glad you enjoyed it, I enjoyed running the course.
For sure a great course to be in :-) I watched it multiple times. A pity is the bad sound-quality in videos from "Thyreophora II: Ankylosauria" on, but it's definitely worth watching.
Whole.....not hole
I really enjoyed this series of lectures. What happened to the stegosaur lecture? I seemed to have missed it.
As you may have detected from the crummy audio, I had a terrible mic, that on the day of the Stegosaurs completely failed. It doesn't look like these next two semesters I will get to do Dino's but I am planning on uploading two other courses for 19/20 related to ecology and ichthyology and purchasing a much better microphone.
Thank you for sharing this lecture!
I actually just watched a lecture series that covered earth's history, and in the section about the cretaceous the speaker said that the K is used because the German translation uses a K. Although wikipedia said both that that the German translation for cretaceous is the word for chalk, which apparently is Kreide and also that it is based on the Latin word Creta, which also means chalk. I think I like your reasoning better. Great video!
I favor the German explanation, as German was a major scientific language in palaeontology, geology, chemistry and physics up to the second world war. We say "Kreidezeit" (chalk time) to the Cretaceous. There are other German loanwords in this field like "lagerstatten". This comes from Lagerstätte, which means "deposit locality".
It is also the reason why the element potassium is K and sodium is Na in the periodic table, from the German versions Kalium and Natrium.
Wish I could hear it.
why do you reek of sheeaat?
Great stuff.
Great Video Dr Evans. It is really cool how the flexible diet of the nautiloids helped them to survive :) I hear they also have a longer lifespan, so even if the ocean water is too acidic for their thin shelled babies to survive for a couple years, they can spawn again later. But they say ammonites had a grow fast, die young strategy like modern squids & octopuses - so just 2 years with ocean water too acidic for their thin shelled offspring could drive them to extinction................. but, then again.............. how did ammonites survive the Great Dying & not survive the K-PG extinction??? Interesting thought....
Good question, but ammonites were already on the decline by the K-Pg, whereas they were far more abundant and diverse earlier. I suspect, they are a very old group, that they began to be out-competed by more advanced forms that began to dominate the ocean, but testing this with the fossil record is hard. Another interesting mollusk story if you are interested: th-cam.com/video/S4vxoP-IF2M/w-d-xo.html
Could the Deccan Trap eruptions have contributed to this extinction event? Is there any evidence for this being a cause?
The cataclysms known as Siberian and Deccan Traps killed off much of the humans and animals in their regions - the only greater extinction than the Siberian - and its related decimation - occurred when dozens of supervolcanoes erupted in North America in one night as thousands of smaller volcanoes erupted across four continents - geologists, volcanologists, paleontologists, etc., are oblivious to this cataclysm but it's documented in historic records, in different languages - with the exact date - by people more than 16,000 km apart - this horror is corroborated in other languages by those who observed the on-going destruction which included decades of some of the volcanoes erupting and massive clouds of volcanic ash - an estimated 99% of all human and animals died in North America because of that destruction.
Since the timeline for the broken and subducted tectonic plates is also documented in historic records, since the force that broke and subducted the tectonic plates is documented, since the timeline for the ocean trenches and archipelago islands is documented, since the when and why of the Grand Canyon is documented by our ancestors in the old recoreds, since the when and why of the Siberian and Deccan Traps is documented, since the when and why of the boot of Italy is documented, since the timeline for the Mediterranean Sea is documented, since the timeline for the Red Sea, the Arabian Sea, the Ross Sea, etc., is documented, since the timeline for the Arabian, Iberian, Yucatan and Olympic Peninsulas are documented, since the timeline for the giant sea creatures and dinosaurs is documented, since the timeline for the continents, oceans, mountains, glaciers, ice shelves, Earth's expansion, Earth's cataclysms, Earth's climate, etc., are all documented - by our ancestors who barely survived or later documented the decimation and since this timeline from our ancestors is corroborated by thousands of other independent sources, theories from the "scientists" are exposed as idiotic insanity.
I've looked on google earth many times and that crater does not show up.
That crater is a figment of the imagination, published in "scholarly journals" by multi-million dollar publishing houses that are controlled by the pedovore overlords that control our world ... now let's see ... what would be their motive for propagating lies and lunacy?
🤣
Can't hear the lecture, let alone the student questions.
I wonder if the rock fallout being discussed at the 20 minutes mark was sufficient to start fires in areas throughout the world? I heard this suggested, but never knew if anybody had verified this outcome.
Edit nevermind: It gets mentioned later
Yes.
I wonder why Dr Bakker fought so long and hard against this for so many years then find out he was wrong?
I would suspect, like most scientists, they are happy to see their idea be shown to be wrong and a better answer given. I have overturned my own hypotheses with new data, it is exhilarating to get closer to the truth.
Have we ever discovered fossils from animals that are thought to have died in this extinction event, or in any other extinction events? If not, why are these fossils missing, I would assume that the billions of dead individual animals would show up in the fossil record?
Even on really bad days, the number of animals that can die is minuscule compared to the number that have lived. So the number preserved at this moment in time (if they were) would still be too small to detect.
@@thomasevans3387 So a statistical argument. I get it. If we assume that the average lifespan of a dinaosaur is 20 years, the odds of a specific dinosaur fossil being from the extinction event (all other things equal) is roughly 200m / 20 = 10m. So we only need to find 10m fossils to have a 63 % chance that one of them comes from the K/T extinction event. I wonder if we would be able to tell if it came from that event, though.
Robert DePalma claims to have found a sturgeon that died at the K/T event. Have a look at th-cam.com/video/oDiZRonhoa8/w-d-xo.html from 50:00
If your enjoying this documentary your have ears like a fox.
Or a device with speakers which work
Thank you my ancestors evolved them to sense the hyenas.
@28 minutes: Historic documents explain the cause of this cataclysm - with the exact date - written in different languages by people more than 16,000 km apart - this is then corroborated in other languages by those who came along shortly afterward and documented the decimation.
"Scientific framework" with artist renderings and "scientific" graphs is not equivalent to reality - you've just exposed yourself as a lunatic with no conscience who prefers guessing games and wild imaginings to actual evidence.
What?
He starts with a picture.......then immediately says..... but it but it doesn't look like that....the crater rings are wrong..the inner one should be smaller and it shows the crater over land when it should be in water...i would have got up and walked out right there........like showing a volkswagon and saying but it doesn't look like that it's 20 feet longer and has double headlights........sloppy presentation
The point of showing something and then saying it doesn't look like this, is that it makes the viewer think: Why is there this disconnect? Intentional trick to get people to remember things better.
But it DOES "look" like that. Though this impact was most likely not the cause or sole cause (the Deccan Traps in India, which were erupting for about a million years most likely had a lot to do w/the K-T extinction). Please no more speculation or conspiracy stuff. Just follow the research & do more and/or better stuff & don't say anything that you can't back up. Thanks.
@@MrKmanthie please link to your pic
philip stien - feel free to upload your own presentation and link it here.
Hahahaaaahahaaaaaaa
Bottom smasher